🐛 [Fix] GUEST 토너먼트 참가 불가능하도록 수정

[Kimhan-nah]

📌 개요

• GUEST 유저는 토너먼트 참가 불가능하도록 수정

💻 작업사항

• spring security config에서 토너먼트 참가 신청 API는 USER, ADMIN만 허용하도록 설정 추가
• tournament 테이블의 contents 컬럼을 VARCHAR(3000)으로 수정
• 토너먼트 생성 API, 토너먼트 수정 API Request DTO에서 @Length로 길이 제한

[codecov-commenter]

Codecov Report

Attention: 1 lines in your changes are missing coverage. Please review.

Comparison is base (673d8b4) 69.57% compared to head (f3cc2e8) 69.67%.
Report is 1 commits behind head on main.

Files	Patch %	Lines
.../gg/server/domain/rank/redis/RankRedisService.java	92.85%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               main     #483      +/-   ##
============================================
+ Coverage     69.57%   69.67%   +0.09%     
+ Complexity      824      822       -2     
============================================
  Files           255      255              
  Lines          3783     3795      +12     
  Branches        352      352              
============================================
+ Hits           2632     2644      +12     
  Misses          949      949              
  Partials        202      202              

Flag	Coverage Δ
integrationTest	69.38% <87.50%> (+0.09%)	⬆️
unitTest	10.30% <6.25%> (+0.28%)	⬆️

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